There is a photograph of the port side of the USS Indianapolis departing Tinian.It clearly show the aircraft on the catapult ramp.Does anyone know the name and rank of the pilot and his observer/radioman?

According to the book "Ordeal by Sea: The Tragedy of the USS Indianapolis" Roy Lee Hopper is listed as rank AM1c (Airman 1st Class) (Dead), James Kenneth Jarvis as AM3c (Wounded). These were the only two names that I could find that were "for sure" pilots from the roster. There were, however, a couple abbreviations that I was unsure of: AerM2c and AMM2c with AMM2c that I believe may have been Airmen Machinist 1st and 2nd Class respectively.